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- Title
Wetting Front Analysis of the Richards' Equation with Impervious Boundary.
- Authors
Xi Chen; Ying Dai
- Abstract
It is analyzed the wetting front of the Richards' equation (RE) for horizontal infiltration problem with impervious layer in a finite medium, and obtained an approximate analytical solution by the series expansion technique. The present approximation is suitable for arbitrary diffusivity in RE and applied to simulate the changes of saturation after the front pass through the impervious point. Two examples about power law diffusivity are analyzed to confirm the accuracy of present solution.
- Subjects
BOUNDARY value problems; WETTING; SERIES expansion (Mathematics); COMPUTER simulation; POWER law (Mathematics); APPROXIMATION theory
- Publication
International Journal of Nonlinear Sciences & Numerical Simulation, 2018, Vol 19, Issue 6, p595
- ISSN
1565-1339
- Publication type
Article
- DOI
10.1515/ijnsns-2017-0084